Adding to the list of suggestions by other commenters, Sim Daltonism: http://michelf.ca/projects/sim-daltonism/ http://michelf.ca/projects/sim-daltonism/ I rem

Adding to the list of suggestions by other commenters, Sim Daltonism: http://michelf.ca/projects/sim-daltonism/ http://michelf.ca/projects/sim-daltonism/ I remember using it for a university project in 2007, in which we had to build a movie lookup website from scratch. I used Sim Daltonism to design 3 alternative CSS that would cater to the needs of people with different types of colorblindness (there's not just one type, although deuteranomaly (red/green colorblindness) is the most widespread). The teacher thought it was superfluous and took points off. sigh :)